Http cache: Implement a timeout for the cache lock.

net/http/mock_http_cache.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/http/mock_http_cache.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_errors.h"
@@ skipping 498 matching lines @@
   disk_cache::Backend* backend;
   int rv = http_cache_.GetBackend(&backend, cb.callback());
   rv = cb.GetResult(rv);
   return (rv == net::OK) ? static_cast<MockDiskCache*>(backend) : NULL;
 }
 
 int MockHttpCache::CreateTransaction(scoped_ptr<net::HttpTransaction>* trans) {
   return http_cache_.CreateTransaction(net::DEFAULT_PRIORITY, trans);
 }
 
+void MockHttpCache::BypassCacheLock() {
+  http_cache_.BypassLockForTest();
+}
+
 bool MockHttpCache::ReadResponseInfo(disk_cache::Entry* disk_entry,
                                      net::HttpResponseInfo* response_info,
                                      bool* response_truncated) {
   int size = disk_entry->GetDataSize(0);
 
   net::TestCompletionCallback cb;
   scoped_refptr<net::IOBuffer> buffer(new net::IOBuffer(size));
   int rv = disk_entry->ReadData(0, 0, buffer.get(), size, cb.callback());
   rv = cb.GetResult(rv);
   EXPECT_EQ(size, rv);
@@ skipping 93 matching lines @@
 void MockBlockingBackendFactory::FinishCreation() {
   block_ = false;
   if (!callback_.is_null()) {
     if (!fail_)
       backend_->reset(new MockDiskCache());
     net::CompletionCallback cb = callback_;
     callback_.Reset();
     cb.Run(Result());  // This object can be deleted here.
   }
 }